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Radiant|Lab Grown|IGI

1.64ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG600377774

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG600377774

Diamond specifications and retailer prices

From HK$2,527 HKD
$322 USD
As of October 30, 2026
Save HK$21,797 HKD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$24,324 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG600377774 or 600377774. Listed at 25 retailers as of October 29, 2026, with prices from HK$2,527 to HK$24,324, a HK$21,797 spread on the same certified stone. Brilliant Earth lists it at HK$24,324. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600377774
Dimensions9.06 × 5.84 × 3.68 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.06 mm5.84 mm1.64 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600377774
Side View
Table 64.0%Crown 41.2°Girdle: MediumPavilion 32°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$24,324 HKD|Low: HK$2,527 HKD|High: HK$24,481 HKD|Avg: HK$9,816 HKD|-0.6%
Brilliant Earth
Retailer 2
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Retailer 24
October 30, 2026
Retailer 6HK$2,527 HKD
Retailer 10HK$2,825 HKD
Retailer 16HK$2,935 HKD
Retailer 3HK$3,131 HKD
Retailer 21HK$3,131 HKD
Retailer 23HK$3,515 HKD
Retailer 20HK$4,355 HKD
Retailer 22HK$5,059 HKD
Retailer 11HK$5,084 HKD
Retailer 7HK$5,194 HKD
Retailer 19HK$5,385 HKD
Retailer 2HK$5,597 HKD
Retailer 18HK$7,303 HKD
Retailer 4HK$9,188 HKD
Retailer 8HK$9,298 HKD
Retailer 14HK$10,039 HKD
Retailer 24HK$10,075 HKD
Retailer 9HK$10,428 HKD
Retailer 15HK$12,044 HKD
Retailer 5HK$12,197 HKD
Retailer 12HK$12,423 HKD
Retailer 13HK$12,626 HKD
Retailer 17HK$18,831 HKD
Brilliant EarthHK$24,324 HKD

40 data points across 24 retailers

25 retailersHK$2,527 HKD to HK$24,324 HKD

A
Cheapest Retailer
-
HK$2,527 HKD
$322 USD
A
Retailer 2
-
HK$2,825 HKD
$360 USD
View
Final sale: no returns
A
Retailer 3
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HK$2,935 HKD
$374 USD
View
A
Retailer 4
-
HK$3,131 HKD
$399 USD
View
A
Retailer 5
-
HK$3,131 HKD
$399 USD
View
A
Retailer 6
-
HK$3,515 HKD
View
A
Retailer 7
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HK$4,355 HKD
$555 USD
View
A
Retailer 8
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HK$5,059 HKD
€614 EUR
View
A
Retailer 9
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HK$5,084 HKD
$648 USD
View
A
Retailer 10
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HK$5,194 HKD
$662 USD
View
A
Retailer 11
-
HK$5,385 HKD
ZAR 11,088 ZAR
View
A
Retailer 12
-
HK$5,597 HKD
£562 GBP
View
A
Retailer 13
-
HK$7,303 HKD
A$1,432 AUD
View
A
Retailer 14
-
HK$9,188 HKD
$1,171 USD
View
B+
Retailer 15
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HK$9,298 HKD
$1,185 USD
View
B+
Retailer 16
-
HK$10,039 HKD
SGD 1,729 SGD
View
B+
Retailer 17
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HK$10,075 HKD
$1,284 USD
View
B+
Retailer 18
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HK$10,428 HKD
$1,329 USD
View
B+
Retailer 19
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HK$11,095 HKD
$1,414 USD
View
B+
Retailer 20
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HK$12,044 HKD
$1,535 USD
View
B+
Retailer 21
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HK$12,197 HKD
£1,224 GBP
View
B+
Retailer 22
-
HK$12,423 HKD
$1,583 USD
View
B+
Retailer 23
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HK$12,626 HKD
£1,267 GBP
View
Retailer 24
-
HK$18,831 HKD
$2,400 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
19055686A · Oct 29
HK$24,324 HKD
$3,100 USD
View
24 more retailers have this diamond
Prices start from HK$2,527 HKDSave up to HK$21,797 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.64ct Radiant
HK$2,527 HKD